baber/WOPTO huggingface dataset:
Patent GB-524929-A (GB)
Title: Improvements relating to aircraft undercarriages with resiliently mounted landing elements
IPC: B64C25/14
Filed: 1939-01-13
Abstract: 524,929. Aircraft landing gear. DOWTY, G. H. Jan. 13, 1939, No. 1269. [Class 4] A retractable aircraft undercarriage comprises a non-yielding supporting structure such as a leg, a pair of alighting elements mounted side by side on substantially coaxial transverse axles connected to the supporting structure by a deformable articulated frame, including a telescopic shock-absorber, arranged in a plane between the alighting elements. Two wheels 5 are mounted on stub axles extending slightly downwardly from opposite sides of a cylinder 8 on an arm SA pivoted to a rigid leg 3. A hollow piston 10 works in the cylinder 8, a connecting-rod 13 being interposed between the upper end of the piston and a pivot 14 on the leg 3. An inner piston 11 divides off an airspace in the piston 10, the rest of the piston 10 and cylinder 8 being filled with oil which is forced through restricted holes 12 in the piston 10 as the air is compressed under the load. The shock absorber and articulated mounting is similar to that described in Specification 522,833. The wheels may be replaced by skis, floats, or endless track elements. The leg 3 is retractable, the twin elements taking up less vertical space, when retracted into a wing, than an equivalent single wheel or other landing element. According to the Provisional Specification the two elements may be mounted on separate arms which act to displace liquid into a common compressed air chamber affording an equalized pressure on the two arms.
Patent GB-103345-A (GB)
Title: Improvements in Arrangements for Transmitting Impulses, particularly applicable in Telephone Systems.
IPC: H04Q1/32
Filed: 1916-01-26
Abstract: 103,345. Relay Automatic Telephone Co., and Bygrave, L. C. Jan. 26, 1916. Automatic exchange systems.-In an arrangement for transmitting current-impulses from a primary curcuit 1 to a secondary impulse circuit 2, the latter circuit is normally closed through a coil D and, on the first de-energization of the impulse relay A. is placed without interruption, by means of a relay C, under the control of the impulse relay A, the first impulse being then transmitted by the breaking of the secondary circuit due to the re-energization of the impulse relay. The slowrelease relay C is controlled by the slow-release guard relay B so that it is energized when the relay A is first de-energized.
Patent GB-1491373-A (GB)
Title: Nuclear fuel element
IPC: G21C3/00
Filed: 1975-01-13
Abstract: 1491373 Fuel elements GENERAL ELECTRIC CO 13 Jan 1975 [11 Feb 1974] 1337/75 Heading G6C A fuel element comprises a metallic elongated container 17 in the form of a right circular cylinder, a layer 22 of high lubricity material, e.g. graphite or molybdenum disulphite, disposed in and adjacent to the container 17, a low neutron capture cross-section metal liner 21, e.g. of Zr, Zr alloy, Nb or Nb alloy, adjacent to the layer 22, a core 16 of fuel material, e.g. UO 2  or a UO 2 /PuO 2  mixture, and plugs (not shown) scaling the ends of the container 17. The container 17 is preferably formed of Zircaloy-2. The liner 21 serves as a preferential reaction site for volatile impurities and fission products and protects the container 17 from contact and reaction with such impurities and fission products. The layer 22 of high lubricity material acts as an interface between the liner 21 and the container 17 and reduces localized stresses on the container due to fuel expansion and cracking of the fuel. The layer 22 can be in the form of a coating on the outer surface of the liner 21 or the inner surface of the container 17, or a hollow cylinder disposed between the liner and the container. In the latter case, it can be in the form of a hollow cylindrical foil or a foil wrapped to form a hollow cylinder and be capable of being inserted inside the container 17 prior to the insertion of the fuel core 16.
Patent GB-283599-A (GB)
Title: Improvements in slicing machines
IPC: B26D7/06
Filed: 1928-01-16
Abstract: 283,599. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen. Jan. 15, 1927, [Convention date]. Cutting slices in succession. - In a disc-knife reciprocating table machine, means are provided for locking the table against inadvertent movement when the machine is not in use. As shown in Fig. 2, the invention is applied to a machine wherein the table is reciprocated directly by hand, and the knife is revolved by mechanism connected to the table. The carriage c rides on guide rails b on the base a and the operating handle g extends between two projecting brackets i. A hand grip n on a bell crank k, m pivoted to one of the brackets i at l is normally urged by a spring p away from the handle g, so that the lower end of the bell crank engages one of a series of notches o in the base a, thereby locking the table. The table is released by grasping the hand grip n and pulling it towards the handle g during the operation of the machine. In a modification, the machine is operated by the usual hand-wheel, the locking device being controlled by a lever associated with the handle of the hand-wheel. A pawl co-operating with a circular-toothed rack secured to the base coaxial with the hand-wheel is released when the operator grasps the handle thereby freeing the hand-wheel.
Patent GB-544211-A (GB)
Title: Needle-vibrating mechanism for sewing machines
IPC: D05B3/02
Filed: 1941-02-06
Abstract: 544,211. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Feb. 6, 1941, No. 1574. Drawings to Specifications. [Class 112] The mechanism of Specification 544,210, is described and shown. The claims relate to the pivotal mounting of the vibrating frame carrying the needle-bar.
Patent GB-660887-A (GB)
Title: Improvements in snap-action electrical switches
IPC: B23B29/034
Filed: 1949-01-20
Abstract: 660,887. Retractive switches. IIYDE, N. E., HUTCHINGS, K. J., and BUCKINGHAM, J. Jan. 20, 1949. No. 1619/49. Class 38 (v). In a snap-action retractive switch intended primarily for cutting off the supply to electrical apparatus when a protective enclosure is opened, means are provided to ensure positive actuation of the switch contacts in the event of failure of a toggle spring. The switch comprises a link 8 pivoted at 9 to the switch casing, at 7 to an actuating push rod 3 and at 21 to a telescopic link 11 which is surrounded by a compression spring 12. The other end of the link 11 has a pin 19 engaging in slots 20 in one pair of limbs of a pair of L-shaped members 13, which pivot about in fixed pivots 14 and carry a contact roller 16. When a plunger 2 is depressed, the downward movement of the rod 3 causes the link 8 to turn clockwise so as to move the toggle mechanism over a dead-centre position and open contacts 16, 17 and close contacts 16, 18. In the event of failure of the spring 12, tension springs 23 move the pin 19 to the other ends of the slots 20 and cause slotted links 22 fixed at one end to the pin to move to a position where they engage the pivot 7 as well as the fixed pivot 14. This couples the rod 3 directly to the L-shaped members 13 and provides positive actuation. The provision of a bellows .5 surrounding the push rod 3 and return spring 4. enables the switch casing to be hermetically sealed, soldering lugs 24 being brought through the bottom of the casing by glass-tometal or ceramicto-metal seals. The casing may be filled with hydrogen, nitrogen or other inert gases or mixtures of inert gases. The removal of the sleeve 25 surrounding the bellows enables the plunger 2 to be replaced by another operating member such as a lever, without breaking the seal of the casing.
Patent GB-536040-A (GB)
Title: A chamfering or bevelling machine for use in the manufacture of wooden tent pegs, tent pins or the like
IPC: B27M3/28
Filed: 1940-01-26
Abstract: 536,040. Chamfering-machine for tentpegs &c. ERCOLANI, L. B. Jan. 26, 1940, No. 1631. [Class 145 (i)] A machine for chamfering the edges of tent-pegs &c. comprises one or more shafts 20 each carrying at least two sets of rotary cutters 49, 50 partially enclosed by a shield 58 having a slot 56 through which the pegs are drawn for chamfering the longitudinal edges. At least one of the cutters has a second set of blades 22 for chamfering the ends of the pegs, a tapered collar being provided on the shaft to serve as a steady rest for the pegs during this operation. The shafts 20 are belt driven from a shaft 24 extending underneath the machine table and driven by a motor 29. Troughs 16 into which the chamfered pegs are thrown by the operatives are provided between the table sections 15, the troughs having openings in their bottoms through which the pegs fall on to a conveyer belt 33 which delivers them to a receptacle 39.
Patent GB-547006-A (GB)
Title: Improvements in and relating to electric contacts
IPC: H01H3/00
Filed: 1941-02-07
Abstract: 547,006. Electric motors. ARON, W., and HACKLANDER, K. H. Feb. 7, 1941, No. 1656. [Class 35] [Also in Group XXXVII] To ensure reliable operation of make and break switches the contacts of which have become worn or fouled or to prevent the contacts reaching this state, an insulated additional contact is mounted resiliently between the contacts. The Figure shows a torque member 12 with a contact 13 mounted between the contacts 10 of an electromagnetic interrupter for the motor of a dry shaver, the contacts 10 being periodically separated by a cam 7 on the armature 5 which rotates between the pole pieces 4 of the electromagnet 3. The invention is also applicable to other types of switches, and to commutators for motors and dynamos.
Patent GB-798371-A (GB)
Title: Improvements in ladders
Inventor: CHRISTOPHERSEN BARDON
IPC: B63B27/14
Filed: 1957-01-16
Abstract: 798,371. Flexible ladders. NORSE ALUMINIUM PRODUCTS. Jan. 16, 1957, No. 1678/57. Class 20(2)  A ladder comprises channel-shaped steps 1 attached to a pair of ropes 4, 5 at each end passing through recesses in the steps and clamped by a screw 8 between an angle member 7 and a tubular member 6 fixed in the flanges of the step and protruding from one side of the step to hold the ladder away from a ship's side.
Patent GB-563198-A (GB)
Title: Improved method of and device for shaping flexible sheets of wood
IPC: B27D1/08
Filed: 1943-02-02
Abstract: 563,198. Bending wood. GRAMELSPACHER, C. U. Feb. 2, 1943, No. 1736. [Class 145 (ii)] [Also in Group VIII] A method of shaping a number of flexible sheets of wood into an article, such as a cabinet or a part of an aeroplane, consists in applying adhesive to the sheets, arranging the sheets in contact with one another in a hollow mould, and exerting pressure on the sheets to press them together and to force them into conformity with the mould. Preferably, the pressure is applied by inflating a flexible bag within the space enclosed by the sheets, and is maintained for a time sufficient to allow the adhesive to set, the sheets being heated to expedite the setting. The mould comprises a base 1, a vertical back wall 2, side walls 4 hinged to the back wall, a hinged cover, and a front wall 6 slidably mounted on the base and movable to and from the rear wall by a rotatable cam 19. Channels 11 are formed within the walls for the circulation of steam or other heating fluid. Centrally disposed between the walls is an expansible bag 30, of rubber or the like, with an inlet 31 extending downwards through the base 1. The bag has walls of varying thickness, according to the shape of the article to be made, to secure even pressure on the walls of the article. In use, sheets 40 of veneer are coated with adhesive and are assembled face to face in the mould, as shown. The mould is then closed and locked and the bag 30 inflated to press the sheets against the walls of the mould and hold them in place while the adhesive sets under the heat from the steam circulating through the channels 11. A flexible metal sheet may be interposed between the bag and the veneers to transmit the pressure. If desired, a thin flexible electric heating element may be used around the bag to transmit the pressure and apply heat to the veneers. A layer of cloth, asbestos, metal foil, or the like may be used in addition to, or in place of, one of the sheets of wood.
Patent GB-228164-A (GB)
Title: Improvements relating to portable tools
IPC: F01B1/08
Filed: 1925-01-20
Abstract: 228,164. Chicago Pneumatic Tool Co., (Assignees of Collins, A. H.). Jan. 22, 1924, [Convention date]. Drilling-machines; tapping; screwing - up screws and studs.-Portable apparatus for rotating a tool such as a drilling, reaming or tapping tool or for screwing up bolts &c. consists of a casing comprising three parts A, B, C which house a crank-shaft 25, a pair of double-acting cylinders 17, and reduction gearing 34 respectively. The tool-spindle 8 lies in the plane defined by the cylinders and crank-shaft and on a line intersecting the cross-head guides 21. Three sockets 9, 10 and 11, all arranged in the same vertical plane as the tool-spindle 8, are provided for handles, the two horizontal ones being on non- coincident parallel axes. The socket 10 may receive a centre 12a, Fig. 4. Fluid-pressure to the cylinders is controlled bv a pair of cylindrical slide-valves 28, Fig. 7, on the plane of the handle 14 reciprocated by rods 30 and eccentrics 31 on the crank-shaft, an admission and reversing valve operated at 14<a> being provided. In the position shown, fluid is admitted through the centre of the valve 14<c> and passage b<2> Fig. 6, to drive the motor in one direction while exhaust takes place through passages b<3>, Fig. 7, and an annular groove 14<d> in the valve to atmosphere. To secure the motor the valvo is moved to the right by a cam-groove 14<c>, Fig. 6, so as to cut off the passage b<2>, and connect the passage b<1> to the central opening 14<c>. A main throttle-valve 14<g> is operated by a cam-groove 14i having a central neutral portion so that the valve is not opened until the reversing-valve has been operated. The cylinders are double acting and the lower covers 20 carry guides 21 for the cross-heads 23. The crank-shaft, which is balanced, is formed at one end into a pinion 25<a> gearing with a wheel 34 on the tool-spindle. Vertical external and internal webs 15, 16, Fig. 4, on the casing B transmit axial thrust from a bearing 38 retained by a spring ring 40 on the tool-spindle, directly to the handle- or centre 12<a>. A gland 35 prevents escape of lubricant round the spindle and a baffle 44 retains lubricant, in the crank-case when the tool is inclined. Relief of pressure in the crank-case is provided by a vent-pipe 45. Specification 8292/13. is reierred to.
Patent GB-1325664-A (GB)
Title: Triazolo pyrimidines and processes for their production
IPC: C07D487/04
Filed: 1971-01-19
Abstract: 1325664 Triazolopyrimidines LONZA Ltd 19 Jan 1971 [27 Jan 1970] 1745/71 Heading C2C [Also in Division G2] Novel triajolo [4,3-a]-pyrimidines of the formula in which Ar is an aromatic radical, are prepared by reacting a 3,5-diamino-1-aryl-1,2,4-triazole with diketene. The reaction is conducted preferably at 20-70 C. in a solvent, optionally in the presence of an organic carboxylic acid catalyst. The starting triajole may be prepared in situ from a hydrazine ArNH.NH 2  and dicyano-diamide Preferred compounds are those in which Ar is phenyl optionally substituted by C 1-6  alkyl. Examples relate to the preparation of 2-phenyl or p-tolyl-3-imino-5- methyl-7-hydroxy-s-triazolo[4,3-a]pyrimidines.
Patent GB-360276-A (GB)
Title: An improved prop support for concrete floor and ceiling shuttering
IPC: E04G25/08
Filed: 1931-01-19
Abstract: 360,276. Scaffold and like props. GNIRS, W., 12, Drahtzugstrasse, and URBAN, A., 24, Hagnaustrasse, both in Basle, Switzerland. Jan. 19, 1931, No. 1750. [Class 20 (ii).] An adjustable prop for supporting floor shuttering is formed of two main members, the upper one of which a rests on an adjustable shoe b mounted to slide on the lower member c and capable of being locked automatically thereon by means of a wedge g coacting with a pin e which passes across the outer ends of links f pivoted to the shoe. The upper end of the wedge passes between the rear face of the lower member and a strap d fixed to the shoe and is turned over at its top to form a depending tongue which passes through the strap and is adapted to be locked therein by a device s.
Patent GB-841598-A (GB)
Title: Method of and apparatus for inserting printed matter, leaflets, samples or other goods between stacked mass-produced articles travelling on conveyor means
IPC: B65B61/20
Filed: 1958-01-17
Abstract: 841,598. Adding leaflets &c. to articles to be packaged. SCHICKEDANZ, G., [trading as VEREINIGTE PAPIERWERKE SCHICKEDANZ & CO.]. Jan. 17, 1958 [March 12, 1957], No. 1767/58. Class 94(1). A gap is produced in adjacent articles being advanced on a belt conveyer by pairs of solenoids operating grippers, one pair of which 7 halts advancing articles while the other 8 moves articles forwardly to create the gap. Solenoids 7 are fixed but solenoids 8 are carried on the armatures of further solenoids 8a for movement in the direction of travel of the articles. Sheets 2 are fed from a stack by a solenoid operated finger 3a to rollers 5 and guide 6 for insertion in the gap.
Patent GB-1088742-A (GB)
Title: Method and apparatus for producing warp knitted fabric particularly curtain materials
IPC: D04B21/10
Filed: 1965-01-14
Abstract: A warp knitted curtain material comprises spaced warp chains connected at intervals by weft threads whereby an open squaremesh fabric is produced some of the squares being filled in by weft threads which are traversed between the chains and which are fed from the same warp beam as the weft thread forming the top and bottom of the squares.  The rate of consumption of the weftwise extending threads varies depending on the purpose for which it is used but as both types of weft yarn extend from the same warp beam the weft thread not being used at any one stage is stored for later use by means of tension bars, compensating rollers, tension rollers, tension springs or the like or by thread guide manipulation.
Patent GB-1080441-A (GB)
Title: Improvements in and relating to foamed plastic material
Inventor: HORROCKS JAMES ANTHONY
IPC: C08J9/36
Filed: 1963-01-15
Abstract: An adhesive comprises unvulcanized and unvulcanizable natural rubber latex, plus additives which control its tackiness and bonding strength.  The additives may include an emulsion of a hydrocarbon or polyethylene wax and/or a latex of a styrene/methylmethacrylate/ethyl acrylate copolymer or a carboxylated styrene-butadiene copolymer or a vinyl acetate/alkyl acrylate copolymer; wetting agents such as an alkyl sulphonate or sulphate; thickeners such as casein, methyl cellulose, acrylates, alginates or polyvinyl alcohol; fungicides; and tackifying resins.ALSO:Foamed plastic sheet materials are coated with a cold-seal adhesive based on natural rubber latex that is unvulcanised and/or does not contain a vulcanising agent and containing at least 10% by weight calculated on the adhesive of natural rubber, plus additives which control its tackiness and bonding strength.  The additives may include an emulsion of a hydrocarbon or polyethylene wax and/or a latex of a styrene/methylmethacrylate/ethyl acrylate copolymer or a styrene-butadiene rubber or a vinyl acetate/alkyl acrylate copolymer; wetting-agents such as an alkyl sulphonate or sulphate; thickeners such as casein, methyl cellulose, acrylates, alginates or polyvinyl alcohol; fungicides; and tackifying resins.  The compositions may be applied by roller coating, air knife coating or gravure coating to all or part of the substrate.  The substrate may be foamed polystyrene, foamed PVC or foamed polyurethane.
Patent GB-1369153-A (GB)
Title: Electric detonator circuit
IPC: H03K5/133
Filed: 1972-01-14
Abstract: 1369153 Time delay circuits MESSERSCHMITT - BOLKOW - BLOHM GmbH 14 Jan 1972 [20 Jan 1971] 1945/72 Heading H3T [Also in Division F3] A detonator 108 is fired when a voltage source 101 has discharged via a resistor 104 and an insulated gate transistor 103 to the gate threshold voltage whereupon the resulting rise of voltage at the output of the transistor causes a second insulated gate transistor 105 of lower threshold voltage to conduct and cause the residual charge in the source to discharge through the detonator. The conduction of the second transistor lowers the gate voltage of the first and the onset of conduction is accordingly regenerative. The firing current may be supplied by the second transistor (Fig. 2, not shown) or by a thyristor 109 controlled by this transistor. The time delay depends upon the initial voltage of the voltage source and detonation during charging is prevented by channel and added capacitance 106.
Patent GB-327772-A (GB)
Title: Improvements in motor lorries
IPC: B60P1/38
Filed: 1929-01-21
Abstract: 327,772. Thorne, W. T., and Davies, D. B. Jan. 21, 1929. Vehicle fittings.-Relates to motor lorries of the kind having a floor movable longitudinally to facilitate loading and unloading, the floor consisting of slats or boards 10 mounted on endless chains. The chains 8 run on guide-rails 7 at each side of the vehicle and the boards &c. 10 are carried bv bracket-members 9 mounted on the pivot pins 20 of the chains. As shown, the guide-rails 7 are formed on longitudinal channel members 6 carried by brackets 5 on the chassis. The boards 10 are secured to the upper run of the endless chains, and when the floor is moved towards the rear by operating hand gear 15 the boards are carried to the position shown in broken lines. The boards may be supported at points intermediate of their length by rollers mounted on the chassis. The boards &c. 10 may be hinged together, they may overlap, and they may be constructed of metal sheet.